DATA PROCESSING METHOD, DATA PROCESSOR, SOLID-STATE IMAGING APPARATUS, IMAGING APPARATUS, AND ELECTRONIC APPLIANCE

摘要

PROBLEM TO BE SOLVED: To perform simultaneous processing of a multiplication/addition operation processing and AD conversion while suppressing an increase in area of a counter circuit in a solid-state imaging apparatus for adopting a reference signal comparison type AD conversion system. SOLUTION: According to a data processing method, when processing a reset level Srst, count processing is performed in an up-count mode from when a reference signal Vslop and the reset level Srst become identical till when a maximal AD conversion period is reached with a negative number of a maximal count number Drm as an initial value Dini. When processing the signal level Ssig, the count processing is performed in the up-count mode from when the reference signal Vslop starts changing from the initial value SLP_ini till when the reference signal Vslop and the signal level Ssig become identical. Count value D2 held in a counter part 254 after the processing of the signal level Ssig indicates data Dsig of a signal element Vsig to be a subtraction processing result between the reset level Srst and the signal level Ssig. COPYRIGHT: (C)2008,JPO&INPIT